Geographical globe



(No Model.) 2 SheetS -Sheet 2.

I. & M. A. HODGSON. GBGGRAPHIGAL GLOBE.

NQ. 488,071. Patented Dec. 18,1892.

. I l l THE nomus Farms co., PnoTo-Ln'no.. wAsmNuTqu. n. c.

UNITED. STATES ISAAC HODGSON AND PATENT OFFICE.

MARY ANN HODGSON, OF SPRINGFIELD, MASSACHUSETTS.

GEOG RAPHICAL GLOBE.

SPECIFICATION forming part of Letters Patent No. 488,071, dated December13, 1892.

Serial No. 403,140. (No model.)

To all whom may concern.-

Beit known that we, ISAAC HODGSON and MARY ANN I-IoDGsoN, citizens ofthe United States, residing at Springfield, in the county of Hampden andState of Massachusetts, have invented a new and useful GeographicalGlobe, of which the following is a specification.

Our invention relates to improvements in geographical globes in Whichthe earths surface is graphically illustrated on textile fabric havingindependent india-rubber lining forming a pneumatic bag in conjunctionwith an air-pump for inflating the bag and fabric to the contour of asphere; and the object of our improvements is to provide alightgeographical globe that can be readily inated and collapsed andconveniently carried in any ordinary pocket. We obtain this object bythe mode and mechanism illustrated in the accompanying drawings,'inwhich- Figurel is an elevation; Fig. 2, atransverse vertical section onthe line AA, Figs. l, 3, 4, 5, and 6; Fig. 3, a horizontal section onthe line B B, Fig. l; Fig. 4, a horizontal section on the line C C,Figs. l and 2 Fig. 5, a horizontal section on the line D D, Fig. l; Fig.6, a horizontal section on the line E E, Fig. 1; Fig. 7, an elevationshowing the globe when collapsed; Fig. S, a perspective view to areduced scale, and Fig. 9 a perspective View of the case in which theglobe and appendages thereof are inclosed.

Similarletters refer to similar parts throughout the several views.

The cylinder a of the air-pump and thelegs b b and b', in conjunctionwith the piston-rod o, forma tripod, which constitutes the standard ofthe globe, bbeing an extension-leg, by means of which the aXis of theglobe can be inclined at any desired angle.

c is the piston-rod of the air-pump, and d the piston accuratelyadjusted in the cylinder a, and provided with valves e e, hinged at f.

To prevent the piston d from being accidentally withdrawn and to affordfacilities for placing and replacing the saine, the lower end ofthecylinder ot of the pump is provided With a screw-threaded ange g, theupper end h being furnished with an air-aperture having a valve c',hinged at j. This end is also provided with a screw-threaded truncatedcone la, thus connecting the neck Zand the cylinder a of the pump. Theupper end of the neck Z is provided with annular corrugations m, overwhich a sufficient portion of the india-rubber lining' or pneumatic bagn and textile-fabric globe-surface o are closely drawn and securelyWrapped, the latter over the former, with strong thread. Over thisthread-Wrapping a sleeve@ is firmly drawn, and below this sleeve p arevolving sleeve q is introduced and provided with an aperture r andarms s. By means of the latter the sleeve p is conveniently turned onthe ,neck Z and the aperture t closed for inflating the globe, which isquickly collapsed by turning the aperture r over the aperture t.

The base u of the piston-rod c is. provided with keepers fo, in whichthe legs b b and b of the tripod are placed and securely held forconvenience of pumping; also for housing in the 'cylinder a of the pump,as shown in dotted lines in Figs. 7 and 8. A sleeve w is slipped on thepiston-rod c, and on the eXterior of this sleeve the legs b an'd b ofthe tripod are placed, and over these legs a flat ring oo is slipped andsecurely brazed, thus securing the legs b and b to the sleeve w, whichfreely slides on the piston-rod c, thus giving the legs h and b of thetripod freedom of contraction and also of expansion to firmly sustainthe globe, which, when set upright on any desired angle,freely revolveson the sleeve fw, the piston-rod c being the axis.

To iniiate the globe, the cylinder a of the pump is taken in the lefthand and the base u of the piston-rod c in the right hand and pressedupward to the end h of the pumpcylinder a, thence drawn downward to thetothe material, the india-rubber lining or IOO prefer, however, the useof suitable metal.

The case y, Fig. 9, may be composed of papier-mache covered with lightleather. Any other suitable material,however, may be used for thepurpose.

We are aware that prior to our invention balls have been made elastic bymeans of iniiated bags of india-rubber. We therefore do not claim such acombination', broadly.

What We do claim as our invention, and desire to secure by LettersPatent, is-

l. The combination of an inatable geographic globe havinga suitableopening with an air-pump secured thereto and comprising a cylinder, apiston operating within the same, a valve opening inward within thecylinder and adjacent to the opening in the globe, Valves opening inwardon the-piston, a piston-rod, and a tripod carried thereby, substantiallyas set forth.

2. The combination of an inflatable geographic globe having a suitableopening with the sleeve p, inserted therein and having a lateral vent t,the sleeve q revolving about the same, an air-pump attached to sleeve pand comprising a cylinder, a piston operating within the same, a valve/Lwithin the cylinder adjacent to the opening in the globe and the vent tand opening inward, valves e e on said piston opening inward, apiston-rod, legs b b, and extensible leg b', substantially set forth.

ISAAC HO-DGSON. p MARY ANN HODGSON.

Witnesses:

F. E. CARPENTER, F. H. STEBBINs.

